One could slip through there and, choosing one's moment, slip upstairs.

If she herself wanted any dinner she had to slip upstairs at twelve in order that Nan could leave at half-past.

In Anthony's early days there, Dom would slip upstairs and straighten his son's room.

As if he could see a room or use the men's, hang around until he could slip upstairs.

For good sightlines and audio, slip upstairs and stand alongside the sound console.

"Perhaps I could slip upstairs and help Geilie with her hair or something," I suggested.

Quick, slip upstairs before he comes down.

With a final look all around, they slipped inside and upstairs.

Nobody here would be looking for a quiet moment to slip upstairs with someone else's escort.

She wouldn't be able to go yet, but the Professor would go back to the drawing room and she could slip upstairs.